function normal(shader, t_base, t_second, t_detail)
    shader:begin("null", "distort")
        :fog(false)
        :zb(false, false)
    shader:sampler("s_base"):texture("$user$generic0"):clamp():f_linear()
    shader:sampler("s_distort"):texture("$user$generic1"):clamp():f_linear()
end